[en] In Belgium, several researchers have been highly active in developing pinhole tomoscintigraphy and have sometimes made a pioneer work. Their contributions concern as well the methodology of the technique as its applications to human and small animals. Reconstruction algorithms, of analytic and iterative type, have been developed and validated. They can reconstruct data obtained along circular, half-circular and non-circular acquisition orbits, the camera head being eventually tilted. A very performing method has been elaborated to determine the seven geometric parameters of the acquisition that are needed for an optimal reconstruction. The use of pinhole tomoscintigraphy for thyroid exploration seems to be born in Belgium and a few validation studies were conducted in the country. Potentials of pinhole tomography application to parathyroid or bone scintigraphy have also been considered. Finally, some research groups are using pinhole tomoscintigraphy for small animal studies.